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Air Mass Meter 200 1989

The air box has 2 intakes. One is through a snorkle in front by the rad. The other is through the corrugated hot air intake hose that wraps around the engine compartment and takes in hot air off the engine for quicker warm ups.

It's the hot air intake that is regulated by the thermostatically controlled flap and it's supposed to be shut off once the engine has warmed up.

If that flap stays open due to thermostat failure (or in your case, lack of the flap) then hot air from the engine compartment will enter continuously and overheat your AMM. If this is the flap that you removed, I suggest you plug the hot air intake hole/tube.
--
1980 245 Canadian B21A with SU carb and M46 trans






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